A cokpoeation of illietois



.P. B. STREICH.

DOUGH SCALING MACHINE.

APPUCATION FILED APR.8.1918.

1 323,7.2/73 Patented Dec. 2, 1919.

2 SHEETS-SHEET P. B. STREICH.

DOUGH SCALING MACHINE.

APPLICATION FILED APR.8. 191a.

Patnted Dec. 2,1919. 2 SHEETS-SHEET 2 v 4 m w w :1 7 a W: MW VA 7-? j wma i. I 77 .7 7 j H" M T .Z w

PAUL B. srnnrcrnjor JoLIn'r, ILLINOIS, ASSIGNOR 'ro THE UNION WRAPPINGMACHINE COMPANY, OF J'OLIET, ILLINOIS, A CORPORATION OF ILLINOIS.

DOUGH-SCALING MACHINE,-

ream.

Specification of Letters Patent. Patented Dec, 2, 1919.

Application med Apri18, 1918. Serial 110,227,202.

To all wkomz't may concern:

Be it known that 1, PAUL B. STREIGH, citizen of the United States, and aresident of Joliet, county of Illinois, have invented certain new anduseful Improvements in Dough-Scaling Machines, of which the following isdeclared to be a full, clear, and exact description. This inventionrelates to dough scaling machines, and more particularly to means forcoupling a'co'ntinuously driven member of the machine to anintermittently driven member. This invention is in the nature of animprovement upon that feature of a dough scaling machine shown anddescribed in my prior application for patent on dough scaling machines,Serial No. 222,995, filed March 18,1918. I

The primary object'of the present invention is to provide coupling meansbetween the continuously rotating member and the intermittently rotatedmember, which'shall respond instantly to the tripping mechanism whichcontrols the coupling mechanism, to thereby insure a moreaccurateiweighing of the dough. In machines of the type described in myprior application, above referred to, the tripping mechanism is actuated by the combined expansion of the dough and- Weight thereof onscale plates, located in pockets ofan intermittently rotated table,which'scale plates trip the tripping mechanism and set in motion themeans for intermittently rotating the table. In said prior application,a toothed clutch is illustrated between the continuously rotating memberand intermittently rotated member, but occasionally, when the two"clutch members are thrown together, the clutch teeth do not interlockinstantly, thereby permitting the table toremain stationary for aninstant longer than it should, i

which permits a greater' amount of dough to be fed into the pockets thanis required. With the present invention, the clutch acts instantaneouslywhen the-tripping mechanism is actuated, thereby-enabling themachine toweigh more accurately.

WVith this and other objects in view, this invention consists intheseveral novel features hereinafter set forth and more particularlydefined in the claims.

The invention is clearly illustrated in the drawings accompanying thisspecification, in which of fill, and State v Figure 1, is a sideelevation of the tripping mechanism and clutch device ofthe presentinvention, and showing in cross section a member of the frame Work ofthe machine; Fig. 2, is a detail, vertical cross section taken on theline 22 of Fig. 3; Fig. 3, is a central, vertical, longitudinal. sectiontaken through the clutch mechanism seen in Figs. 1 and 2, and Fig. 4, isa detail section takenfon the, line 44 of Fig. 1. Fig. 1, shows theposition occupied by'the parts when the intermittentlyrotated shaft isat rest, and Fig. 3,shows the parts in a p0sition occupied immediatelybefore theclutch is thrown out.

Referring to said drawings, the'reference character 75, designates atransverse member of the frame of a dough scaling machine of the typeillustrated in my prior application above referred to. A continuouslyrotating member is here shown as comprising gear wheel 44, which gearwheel corresponds with the gear wheel 44, of my prior application, andis driven from an electric motor (not shown). Said gear wheel 44, isrotatively mounted upon an shown) of the machine, and intermittentlyrotates said shaft and table for the purposes set forth in my priorapplication.

I FiXedly secured to the gear wheel 44, is one member 38, of the clutch,and fixedly secured to the shaft 34, is a second member 66, of theclutch. The clutch member 38, is hollowand has an end wall 38, which isbolted, by bolts 38, to the hub 44, of the gear wheel 44, or it may besecured to said gear manner.v Slidably mounted upon the shaft 34,.is asleeve 66 which is formed at one end with a disklike head or flange 66",which enters the open end of the clutch member 38, and is connected withthe clutch member 66, to rotate in unison therewith, although the slrevehas a limited amount of lengthwise movement along the shaft 34. Saidconnecting means, as here shown to comprise a plurality of pins 66,secured in the head 66 and having nuts 66 on their 1 ends for fixedlysecuring them in place. The

Cross wheel in any other convenient roundthe' pins 66, and areseated'iin depressed portions in the opposing faces of the flange 66",

pins 66", extend through a radial flange 66 formed on theclutch member66, and are secured to a ring 66 that surrounds the cylindrical portion66 of. the clutch mem ber 66. Coiled compression Springs '66, sur

and ring 66. Othercoiled compression springs 66 are seatedin. op-.posing depressions formed in said flange 66 and ring 66 and all of saidcoiled compression springs tend to'yieldingly press the ring 66 andsleeve 66 toward the left, as

viewed in Fig. Between the ring 66,and

the end face 38, of the clutclrmember 38,

I are a number of disks or rings/66 66 The -lengthw1se extending grooves66, formedin disks 66 rotate with the clutch member and the disks 66 738 rotate with the clutch member 66, and, as shown, said disks 66 areformed with tongues'66, that extend into.

' the inner face of the cylindrical portion of shaped shoulder 77, whichextends theclutchinember38. The disks 66 also are formed with tongues66, that extend into lengthwise extendinggrooves'66", that are formed onthe external face'of the cylindricalportion 66 of the clutch member 66.Between the disks 66 ,66 are friction rings 66?, which may besecured toeither set of disks 66 66 The ring 66 is also formed ,with tongues '66,which enter grooves 66".

The sleeve 66, is formed with a spirally around the-cylindrical face ofthe sleeve and termi nates in a shoulder 78, that runs parallel with theaxis of the shaft. A trip lever 73, fulcruined. on brackets 74, of theframe member 75, has a roller 76, which is, arranged to engage theshoulders 77, 78, and the roller carrying end of said lever isyieldingly held in contact with said sleeve 66, by a coiled compressionspring 79, the upper end of whichbears against an adjustment nut 80,threaded on a screw threaded stem 80, which extends down from the framemember 75. The other end of the lever 73, is connected to a trip block60, by any suitable'means, as, for instance, a block 72, and rods 69,70, 85, as shown in my prior application, above referred to. In accordance with said application, the trip block 60, forms part of acontinuous circular track upon which run rollers, one of which is shownat 541-, that support the scale plates in the pockets of the table. Abracket 53, is shown, which connects the roller and raised. 7 In theoperation of j t nuously rotating trated, which forms no partofinvention,but acts in conjunction with the feed roller carrying frame,shown in my prior application, to prevent movement of the tripping,mechanism when said "frame is the device, the congear wheelle, is drivenin. the direction. ofthe arrow, a, in Fig.1. The shaft 34., remainsstationary so longas theroller 76, is in engagement with the shoulder77,, of the sleeve 66?, because the friction disks 66 run freely betweenthe, disks 66.- As'soon as the properainount of dough has been admittedto a pocket, the scale plate therein isdepressed by the dough and thetrip blockis moved down Ward, thereby turning the lever 7 8, upon itsfulcrum, and lifting the, shoulders 77,; 78, permitting the spring67,-=to move the sleeve 66 toward the left, as viewedin Fig. 1. Theinstant the sleeve is released from the lever73, and is moved by thespring 67, the springs 66 ,66; clamp the friction disks 66 66 together,and the clutch members 38, 66, are thereby instantaneouslycoupledtogether to rotate in unison, andthe shaft 34, caused torotate-with the gear wheel 44. This rotation continues as long as thesleeve 66, .is'held in its extreme position toward the left, although incase the table is positively prevented from turning, by any accidentalcause, the friction disks will slip upon'each other and preventbreakage, of any of the parts. 7 As soon as the roller 54, runs off thetripblock 60, the spring 79, forces'down the'roller carry-v ing endofthe leye'r73, and the thereupon rides upon. the eccentric surface 66*,of the sleeve 66,"and when-said sleeve approaches the end ofonerevolution, the inclined, or spiral shaped shoulder,'77, there ofengages with the roller.76,;and-as said" inclined shoulder runsalongflthe roller '76, the sleeve is shifted toward, the right,' asviewed in Fig. 3, therebyiremoving the friction betweenthe disks andcontinuously rotating portion 38,)from theintermittently rotated portion66. 'The tim} ing is such that'when the shaft 34:, has made one completerevolution, the shoulder"? 8, comesinto contact with the roller 7 6.

With the use of a multiple disk friction clutch between the continuously'rotating element and the intermittently rotated ele i the roller 76, upabove 1 roller '7 6,1.

disconnecting the r i eXact form of the construction shown anddescribed, but intend in the following claims to point out all of theinvention disclosed herein. I clalm as new, and deslre to secure byLetters Patent:

1. In-a dough scaling machine, the combination of a continuouslyrotating member,

an intermittently rotated member, a friction clutch, one part of whichsecured to the continuously rotating member, and one part rotatedmember, an endwise movable sleeve connected to rotate with said secondmentioned part of the clutch, automatic means for instantaneouslyforcing the friction members of the clutch into frictional contact, anda tripping lever cooperating with said sleeve to releasably hold thefriction elements of the clutch out of frictional contact, the sleevehaving means en aging said tripping lever for automatical y retractingthe sleeve from the clutch to thereby release the frictional elementsfrom frictional engagement.

2. In a dough scaling machine, the'combination of a continuouslyrotating member, an intermittently rotated member, coupling mechanismtherebetween comprising a multipl disk friction clutch, one part ofwhich is fast to the continuously rotating member and one part of whichis fast to the intermittently rotated member, an endwise movable sleeveconnected to rotate with said second mentioned part of the clutch,automatic means for instantaneously forcing the disks of the clutch intofrictional contact, and a tripping lever cooperating with said sleeve toreleasably hold the friction disks of the clutch out of frictionalcontact, said sleeve having means engaging said tripping lever forautomatically retracting the sleeve to thereby release the frictiondisks from frictional engagement with each other.

3. In a dough scaling machine, the combination of a continuouslyrotating member, an intermittently rotated member, a multiple diskfriction clutch having one part rigidly secured to the continuouslyrotating member and one part rigidly secured to the intermittentlyrotated member, mechanically operated means, including springs forforcing the disks into frictional contact, a longitudinally, movablesleeve, connected with the second mentioned part of the clutch andhaving a circumferential, spirally arranged shoulder, and a springpressed tripping lever having a member lying in the path of movement ofsaid shoulder and arranged to retract the disk disengaging sleeve.

4. In a dough scaling machine, the comis fixedly to the intermittently.

bination of a continuously rotating member, an intermittently rotatedmember, a mul tiple disk friction clutch, one part of which is rigidlysecured to the continuously rotating element-and the second mentionedpart to the intermittently rotated member, means for causing frictionalcontact between the disks of the clutch, an endwise movable sleeveconnected to said second mentioned-part-of the clutch to rotatetherewith when in one position, said sleeve 'hav ing a circumferential,spirally formed shoulder, and a mechanically operated tripping leverhaving a roller lying in'the path of movement of said shoulder, wherebythe sleeve is retracted whenthe shoulder moves as't said roller, saidlever acting to releasably hold the sleeve in retracted position.

5. In a dough scaling machine, the combination of a continuouslyrotating member,

an intermittently rotated member,- a multiple disk friction clutch,onepart of which is rigidly secured to the continuously rotating memberand the second mentioned part to the intermittently rotated member,means for causing frictional contact between the disks of the clutchwhen in one position, an

endwise movable sleeve connected to said second mentioned part of theclutch to rotate therewith, said sleeve having a circumferential,spirally formed shoulder, a me chanically operated tripping lever havinga roller lying in the path of movement of said shoulder, whereby thesleeve is retracted when moving past said roller, and a spring foryie-ldingly holding said roller in contact with said sleeve.

6. In a dough scaling machine, the combination of a continuouslyrotating clutch member, an intermittently rotated clutch member, adriven shaft upon which said second named clutch member is fixedlymounted, said clutch members comprising part of a multiple disk frictionclutch, springs arranged to force the friction disks of the clutch intofrictional engagement, a sleeve slidably mounted on said shaft andconnected to said second named clutch member to rotate therewith, acircumferential, spirally arranged shoulder on said sleeve, and amechanically operated tripping lever having a roller lying in the'pathof movement of said shoulder; substantially as and for the purpose setforth.

,7. In a dough scaling machine, the combination of a continuouslyrotating member, an intermittently rotated shaft, a multiple diskfriction clutch, one member of which is rigidly secured to saidcontinuously rotating member, and another member of which is rigidlysecured to said shaft, a disk engaging ring, springs for pressing saidring against the disks, a sleeve connected to said second named memberof the clutch and ring to rotate therewith, said sleeve having gagement.v

8. Ina dough scallng machine, the coma eirouinferentiah -'spirall-yarranged. shoulder, and a mechanically operated tr pping lever having aroller lying in the path of 7 rnovement of said shoulder and'eobperatingtherewith to retract the sleeve and therewith release the friction,disksfrom frictional enbination of a'continuously rotating mem 10 her,an intermittently rotated shaft, amuliple disk friction clutch, onemember of which is rigidly secured to said continuously rotating member,and another member of which .is rigidly secured tosaid shaft, a

115 disk engaging ring, springs for pressing said ring against thedisks, a sleeve slidably mounted on said shaft, pins seeured'tosaidsleeve and extending through said second named member ofthe clutchand secured to saidringpsaid sleeve having a circumferential, spirallyarranged shoulder, and a mechanically operated tripping lever vhaving aroller lying in the path of movement of said shoulder, and cooperatingtherewith to retraotthe sleeve and therewith release the friction disksfrom frietional engagement..

9. In a dough sealing machine, the com bination of a continuouslyrotating clutch,

member, an intermi tently rotated clutchmember having a radial flange,aldriven shaft upon Whielrsaidsecond named clutch member isfixedlymounted, said clutch members "comprising part of. a multiple diskfriction clutch, asp ring-pressed sleeve slidably mounted on said shaftand formed With a radial fiange pins secured in said flange andextendingthrough said flange. of the 1ntermittentlv rotated clutchmember a spring-pressed ring seeuredto said pins and adapted to againstthe disks of the clutch, a circumferential, spirally arranged PAUL B.STREICH. V

